[SPARK-17505] Add setBins for BinaryClassificationMetrics in mlllb/evaluation

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Won't Fix
• Component/s: MLlib
• Assignee: Unassigned
• Reporter: Peng Meng
• Created: 12/Sep/16 11:04
• Updated: 15/Sep/16 09:07
• Resolved: 15/Sep/16 09:07

Description

Add a setBins method for BinaryClassificationMetrics.
BinaryClassificationMetrics is a class in mllib/Evaluation. numBins is a key attribute of it. If numBins greater than 0, then the curves (ROC curve, PR curve) computed internally will be down-sampled to this many "bins".
It is useful to let the user set the numBins.

Issue Links

• links to: [Github] Pull Request #15058 (mpjlu)